[jira] [Created] (HDFS-10821) DiskBalancer: Report command support with multiple nodes

["Yiqun Lin (JIRA)" <ji...@apache.org>]

Yiqun Lin created HDFS-10821:
--------------------------------

             Summary: DiskBalancer: Report command support with multiple nodes
                 Key: HDFS-10821
                 URL: https://issues.apache.org/jira/browse/HDFS-10821
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: balancer & mover
            Reporter: Yiqun Lin
            Assignee: Yiqun Lin


Since HDFS-10813 has committed to the trunk, then we can use {{getNodes}} method to parse the nodes string and support multiple nodes with {{hdfs diskbalancer}} subcommands(ex -report, -query.). In this JIRA, we are focusing on the subcommand {{-report}}.

That means we can use command {{hdfs diskbalancer -report -node}} to print one or one more datanodes report info.A test input command(here I use UUID to specify one datanode):
{code}
hdfs diskbalancer -report -node e05ade8e-fb28-42cf-9aa9-43e564c0ec99,38714337-84fb-4e35-9ea3-0bb47d6da700
{code}



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